Reciprocating-beam machine.



Y No. 7o7,|68. 1 Patented Aug.' I9, |902.. l N. H.v SEELYE.

RECIPROGATING BEAM MACHINE.

(Applcation filed Sept. 2D, 1901.)

2 Sheets-Sheet I.

(Nu Modvel.)

w il E) l1mm A VWM/5555 No. 70u68. Patented Aug. I9, |902. Y f N. H. sEELYx-z.

BECIPBCATING-BEAM MACHINE.

(Application led Sept. 20. 1901.)

2 Sheds-Sheet 2.

(No Model.)

l/l//TA/fssfs in whichi UNITED STATES PTENT Orricnl NELSON H. SEELYE, OFgWINCHESTER, MASSACHUSETTS.

REclPRocATlNcgal-:AM' MACHINE.

SPECIFICATION forming part of LettersfluatentNo. 707,168, dated August 19, 1902. Application filed September 2O .191. Serial No.4 '75,734.`Y (No model.)

To @ZZ whom it nca/y con-cern: v Be it known that I, NELSON H. SEELYE, of Winchester, in the county of Middlesex-and State of Massachusetts, have invented an' Im-V proved Reciprocating Beam r Machine,`A of which the following is a specification, refer-L, ence being had to the accompanying drawings,

Figure lis a rear elevation of one of my improved beam-machines. Fig. 2 is an end elevation fromthe right of Fig. l. Fig. 3 shows some of the partsin section on a larger scale, and Fig. 4 is a plan of the' end of the beam.

Beam-machines used vmainly for cutting leather and other sheetrmaterial. and com prising a bed, a beam, and mechanism for reciprocating the beam have long been on the market, the oice of the beam being to force the cutting-tools through the leather or other material. p In some of these machines the cutting-tools are arranged by hand on the leather and'forced through the leather-by the pressureof the beam, the leatherbeing supported by a cutting-block on the bed. In others the cutting-'tool is a knife which reciprocates withl the beam, While inothersftheubeam and bed are provided Withpunch and die cutters, all of which will be plain to all skilledin the art. without further-description. Moreover, forj a large class of work itis necessary that the beam should be intermittent in its operation-J that is, it should be set in operation by a treadleand should stop automatically asit completes its. stroke i away'from Q theA bed un-V less the pressure 'on the treadle be continued; and a variety of mechanisms have long been known for accomplishing this result. My invention relates to this class of machines; and it consists'in certain features which are fully described below, all aiding in making a machine of this class much more eflici'ent and much better adaptedto .withstandthe severe strains to which this class of machines are subjected.

One feature of myinvention relates to means'for. connecting the belt-wheel H with and disconnectingit from the actuating-shaft of the beam, and consists in a shipping-lever G, fulcrumed near its middle, with its lower arm connected in the usual lway with one member G of a friction-clutch, and also con 1,' nectedatiits ilower end to the actuatingtreadle "gl, which is'depressedby'the attendant when-he desires to engage the members -of the friction-clutch, which are the spider G andlthebeltLwheel H; and with'its upper end 'in thepath ofcam'` g3, carried'v bythe beam, all'asmost clearly shown in Figg. It is of slipping of 'the moving clutch member H on the normally stationary clutch member G, for bya very few degrees of depression of treadle; g7, and. therebyV rocking :shaft g6 accordingly, arm g5 of rock-shaft g6 moveslink g4, straightens toggle-arms g g2, andfthereby vforces .the lower endfof levergG-.outwaigd-and presses member-QG firmlyl against.. belt-wheel lH, and-fatthe same timecarriesthe'upperend of 'lever G intojthepathofcamlgi-aslzthelbeam A-descends. This featureof my invention depends for itsperfectfworking'u'po'n the nicety ofadj ustment between the members G and H --of thefrictionclutcmv and a second feature of my invention relates to that adjustment and consists in providing a bushing h for beltwheel H, which bushing is adjusted by means of screw-stud h', nut h2, and cap h3, and is held after adjustment by set-screw h4. vblut-kids a check-nut, and stud h is of courseq'fast'in the end of the shaft. The adjustment of belt- Wheel H is readily effected by slacking setscrew 7a4 and check-nut hf" and turning nut h2 vuntil bushing h Will hold'b'elt-Wheel H with its inner face as close to the outer face of spider G as possible, in View of the fact that wheel H must revolve clear of spider G until lever G is moved to force the friction-surface sponding surface of Wheel H.

prime importance in machines of this class, as`

lcontact and also reduce to the minimum the of spider G into firm contact with the corre" roo A third feature of my invention relates to insuring great pressure attained with the maximum quickness and minimum motion of the treadle g7 between spider G and wheel H, and consists in the combination of spider G with treadle g7 by means of toggle-arms g g2, link g4, and a rock-shaft g, rocked by treadle gl, and having an arm g5 connected to link g4. The result is that the frictionsurfaces of the spider Gand belt-Wheel I-I are forced together with the maximum pressure by the minimum effort of the attendant, and in view of the fact that the attendant is required to do this not less than one thousand times per day on the average its importance will be plain.

The brake mechanism gf g10 and the hand- Wheel .I for adjusting the bed are too well known to require description.

What I claim as my invention isl. In combination a beam; a driving-shaft; means connecting Athe shaft and beam; a powerdriven wheel loose on the shaft; a clutch with one member fast to the powerdriven wheel and the other member splined on the shaft; ashipping-leverfulcrumed near its middle and connected by its lower arm with the latter clutch member; a treadle connected with the lower end of the shippinglever; and a cam carried by the beam and operating on the upper end of the shippinglever; all substantially as described.

2. In combination a shaft; a beam; means connecting the shaft and beam; a sleeve on the shaft; means for fastening the sleeve to the shaft with provision for longitudinal adjustment of the sleeve on the shaft; apowerdriven Wheel loose on that sleeve; a clutch member fast to the power-driven Wheel; a second clutch member splined on the shaft; a rock-shaft; a treadle for rocking it against the force of a spring; that spring; and means for connecting the rock-shaft with the second clutch member; all substantially as described.

3. In combination a beam; a driving-shaft; means connecting the shaft and beam; a power-driven Wheel loose on the shaft; a clutch with one member fast to the powerdriven wheel and the other member splined on the shaft; ashipping-lev'er fulcrumed near its middle and connected by its lower arm with the latter clutch member; toggle-arms, one connected at its outer end with the lower end of the shipping-lever, the other connected at its outer end with a fixed support, and both connected at their inner ends with a link; that link connected at its upper end with the toggle-arms and at its lower end to one arm of a rock-shaft; that rock-shaft; a treadle for rocking it; and a treadle-spring on that treadle; all substantially as described.

NELSON H. SEELYE.

Witnesses:

J. E. MAYNADIER, G. A. ROCKWELL. 

